asd

#pragma warning(disable:4996)
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <math.h>
/*
struct Data {
	char nume[30];
	float nota;
	struct Data* next;//pointer catre urmatorul nod
};

typedef struct Data student;

student* alloc() { // alocare memorie dinamica
	return (student*)malloc(sizeof(student));
}

//functie pt citirea listei
void citire(student* start, int n) {
	start->next = NULL;
	student *nod = NULL;
	nod = start;//first va contine adresa de start a listei;
	printf("Introduceti datele studentilor:\n");
	for (int i = 0; i < n; i++) {
		nod->next = alloc();
		nod = nod->next;
		printf("\nStudent %d.\n", i + 1);
		printf("Introduceti numele: ");
		scanf("%s", nod->nume);
	//	fgets((nod->nume), sizeof(nod->nume), stdin);
		printf("Introduceti nota: ");
		scanf_s("%f", &nod->nota);
		nod->next = NULL;
	}
}

void afisare(student* start) {
	student* nod = NULL;
	nod = start->next;
	int i = 0;
	printf("\nDate studenti: ");
	while (nod) { // NULL=ZERO  // while(0) se inchide
		printf("\nStudent %d.\n",i+1);
		printf("Nume: %s.\n",nod->nume);
		printf("Nota: %.2f.\n", nod->nota);
		i++;
		nod=nod->next;

	}


}

void main() {
	int n = 0;
	printf("Introduceti nr de studenti: ");
	scanf_s("%d",&n);

	student* start = alloc();

	citire(start, n);
	afisare(start);
	_getch();
}

*/


typedef struct {
	int x, y;
}PUNCT;

PUNCT *alocare() {
	return ((PUNCT*)malloc(sizeof(PUNCT)));
}

void citire(PUNCT *P) {
	printf("\nx= ");
	scanf("%d", &P->x);
	printf("y= ");
	scanf("%d", &P->y);
}

double distanta(PUNCT *A, PUNCT *B) {
	return (sqrt(pow(B->x - A->x, 2) + pow(B->y - A->y, 2)));
}

void main() {
	PUNCT *A, *B, *C;

	A = alocare();
	B = alocare();
	C = alocare();
	printf("Pentru punctul A:");
	citire(A);
	printf("\nPentru punctul B:");
	citire(B);
	printf("\nPentru punctul C:");
	citire(C);
	double a, b, c;
	a = distanta(A, B);
	b = distanta(A, C);
	c = distanta(B, C);
	if (1) {
#define A A->
#define B B->
#define C C->
#define SPAM ( ( ( A x != B x )&&(A y != B y) ) || ( (A x != C x)&&(A y != C y) ) || ( (B x!= C x)&&(B y != C y) ) )
#define SPAM2 ( ( (A x != B x)&&(B x !=C x) ) && ( (A y != B y)&&(B y!= C y) ) )
	}
	if ( a == b && b == c && SPAM) {

		printf("Triunghiul este echilateral.");
	}
	else
		if (( a == b || a == c || b == c) && SPAM2) {

			printf("Triunghiul este isoscel.");
			printf("\na= %f", a);
			printf("\nb= %f", b);
			printf("\nc= %f", c);
		}
			else {

				//if ((A->x == A->y) && (B->x == B->y) && ( C->x == C->y) && (A->x == B->x) && (A->x == B->x))
			if ((A x == B x) && (B x == C x) && (A y == B y) && (B y == C y))
				printf("Este punct.");
			else
				if ((A x == B x) && (B x == C x))
					printf("Punctele sunt coliniare.");
				else
					if ((A y == B y) && (B y == C y))
						printf("Punctele sunt coliniare.");
					else {
						printf("Este alt tip de triunghi.");
						printf("\na= %f", a);
						printf("\nb= %f", b);
						printf("\nc= %f", c);
					}
		}

	_getch();
}